Improvement in connections for iron and steel bridges



Pmmn JUL 18 187.1

UNITED STATES PATENT Genion.

IMPROVEMENT IN CONNECTIONS FOR IRON AND STEEL BRIDGES.

Specification forming part of Letters Patent No. 117 ,047, dated July 18, 1871.

To all whom it may concern:

Be it known that we, THOMAS C. CLARKE and ADoLPHUs BoNzANo, of the city oi' Philadelphia and State of Pennsy1vania, have invented certain new and useful Improvements in Connections for Iron and Steel Bridges; and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing making a part of this specilication, in which- Figures 1 and 2 represent, respectively, a side and end view ofthe manner of connecting hanged segmental wrought-iron columns with one another to form upright columns in towers, viaducts, bridge-piers, and similar structures, and for forming attachments for lateral and transverse bracing to be connected therewith.

This invention consists in uniting hollow and flanged Wrought-iron columns to each other by means of an internal sleeve fastened at the joint, and splice-plates fastened to the outside flanges 5 also, in uniting lugs to the iianges ofthe columm or structure, for attaching lateral bracing to the column or structure.

To enable others skilled in the art to make and l use our invention, we will proceed to describe the flanges e of columns or sections, and so also as to cross the joint, and are riveted through and through, thus making a iirm and strong union between the sections of columns. The transverse bracing V and tie-rods WV are united by a pin, c, which passes through lugs X riveted to the iianges c of the columns, and thus said bracing is connected with the column. The bracing V is oi' cruciiorm iron, and to unite it to the lugs X its horizontal iianges or ribs are cut away, which leaves a tongue or tenon that iits in between said lugs. The pin then being entered holds the bracing' and rods to the lugs and column.

Having thus fully described our invention, what we claim herein as new, and desire to secure by Letters Patent, is

l. Connecting two hollow iianged columns or sections together by means of an internal sleeve crossing the joint and serving as a tenon to both sections, in combination with external spliceplates d, substantially as and for the purpose described.

2. In combination with the ilanged column,the lugs X, riveted thereto for the purpose or' afford ing an attachment for lateral bracing and tierods, substantially as described.

THOMAS C. CLARKE. A. BONZANO.

I Witnesses:

A. B. S'roUGHroN, EDMUND MAssoN. 

